diff --git a/implementations/rust/Makefile b/implementations/rust/Makefile
index 4b61f80..e57dad7 100644
--- a/implementations/rust/Makefile
+++ b/implementations/rust/Makefile
@@ -1,6 +1,8 @@
+TESTARGS=--lib --bins --examples --tests
+
 # cargo install cargo-watch
 watch:
-	cargo watch -c -x 'test --all-targets -- --nocapture'
+	cargo watch -c -x 'test $(TESTARGS) -- --nocapture'
 
 bench: benches/testdata.bin
 	cargo bench --benches
@@ -10,11 +12,11 @@ benches/testdata.bin: benches/testdata.bin.gz
 	gzip -dc $< > $@
 
 clippy-watch:
-	cargo watch -c -x 'clippy --all-targets'
+	cargo watch -c -x 'clippy $(TESTARGS)'
 
 inotifytest:
-	inotifytest sh -c 'reset; cargo build --all-targets && RUST_BACKTRACE=1 cargo test --all-targets -- --nocapture'
+	inotifytest sh -c 'reset; cargo build $(TESTARGS) && RUST_BACKTRACE=1 cargo test $(TESTARGS) -- --nocapture'
 
 debug-tests:
-	cargo test --all-targets --no-run
+	cargo test $(TESTARGS) --no-run
 	gdb --args $$(cargo test 3>&1 1>&2 2>&3 3>&- | grep Running | awk '{print $$2}') --test-threads=1